NEW: Add Hinge Angle sensor for Android

Assets/QA/Tests/Android/Sensors/AndroidHingeAngleTest.cs

@@ -0,0 +1,21 @@
+using UnityEngine;
+using UnityEngine.InputSystem.Android;
+using UnityEngine.InputSystem;
+using UnityEngine.UI;
+
+public class AndroidHingeAngleTest : MonoBehaviour
+{
+    public Text info;
+    void Start()
+    {
+        if (AndroidHingeAngle.current != null)
+            InputSystem.EnableDevice(AndroidHingeAngle.current);
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if (AndroidHingeAngle.current != null)
+            info.text = $"Angle: {AndroidHingeAngle.current.angle.ReadValue()}";
+    }
+}